<div dir="ltr">Hello Phil,<div><br></div><div>What is the noise floor for 9kHZ to ~ 60MHz?</div><div><br></div><div>Realize this depends on a lot of things; just wondering if anyone has made any real measurements of what the noise floor is and/or made a determination on what the </div><div>weakest measurable signal level is.</div><div><br></div><div>Besides terminating the input and seeing what the lowest signal adjustment is; I was wondering if anyone has come up with a real number.</div><div><br></div><div>To give those an idea that may be wondering what I'm asking; please see the following video when you have time to look at this - it gives an idea of the nature of the measurement:</div><div><a href="https://www.youtube.com/watch?v=ujce9AzrqdY">https://www.youtube.com/watch?v=ujce9AzrqdY</a><br></div><div><br></div><div>73's,</div><div>John</div><div>AJ6BC</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Apr 5, 2018 at 7:49 PM, Phil Harman <span dir="ltr"><<a href="mailto:phil@pharman.org" target="_blank">phil@pharman.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">***** High Performance Software Defined Radio Discussion List *****<br>
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<div dir="ltr">
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<div>Hi John,</div>
<div> </div>
<div>I still use an Atlas based SDR as my main station transceiver – what
measurements to you need please?</div>
<div> </div>
<div>73 Phil...VK6PH </div>
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<div> </div>
<div style="BACKGROUND:#f5f5f5">
<div><b>From:</b> <a title="john@westmorelandengineering.com">John C. Westmoreland, P.E.</a> </div>
<div><b>Sent:</b> Thursday, April 5, 2018 5:27 PM</div>
<div><b>To:</b> <a title="hpsdr@openhpsdr.org">HPSDR</a> </div>
<div><b>Subject:</b> [hpsdr] Noise Floor Calculation/Measurement Of Legacy
System</div></div></div>
<div> </div></div>
<div style="FONT-SIZE:small;TEXT-DECORATION:none;FONT-FAMILY:"Calibri";FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;DISPLAY:inline">*****
High Performance Software Defined Radio Discussion List *****<br><br>
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<div dir="ltr">Hello All,
<div> </div>
<div>I was just wondering - did anyone do any noise floor
calculations/measurements on the legacy Atlas-Bus based HPSDR platform?</div>
<div> </div>
<div>73's,</div>
<div>John</div>
<div>AJ6BC</div>
<div> </div>
<div> </div>
<div> </div></div>
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